CN206022200U - High voltage isolator and its fracture component - Google Patents

Abstract

A kind of high voltage isolator and its fracture component，High voltage isolator includes the fracture component constituted with yang contacts with negative contact and the conductive arm being fixedly connected respectively with yang contacts and negative contact，The yang contacts have annular flange flange and body part，The annular flange flange radially stretches out from the end of the body part or nearby，The negative contact has multiple fingertips，Which surrounds central axis using cylindric arrangement mode，Radius of the radius of the inscribed circle in the cylinder space for surrounding less than the annular flange flange of yang contacts，The plurality of fingertip is included in the junction surface engaged when disconnecting switch is closed with the annular flange flange of the yang contacts，In the section of central axis，The arc that the periphery of the annular flange flange of the junction surface formation and yang contacts matches，Multiple fingertips are completed the electrical connection with yang contacts by its own resilient by junction surface，Wherein described negative contact also includes the fixed part that fingertip is permanently electrically connected in the way of cambered surface contact the first conductive arm.

Description

High voltage isolator and its fracture component

Technical field

This utility model is related to a kind of high voltage isolator and its fracture component, further relates to a kind of manufacture high voltage isolator Negative contact method.

Background technology

High voltage isolator is the switchgear for having voltage and zero load circuit in high-voltage electric power system for division, also It is to say, when people's repair apparatus, substantially may be used being formed between repair apparatus and charging equipment using high voltage isolator The cut-off point that sees, high voltage isolator reliably by running current and can bear short trouble electricity in closed state Stream, in addition high voltage isolator and high-voltage switch gear coordinate the load operation mode that can also change electrical network.High voltage isolator is The maximum power equipment of consumption in power system, and major part used out of doors.

High voltage isolator carries electric current, described electrical part subpackage by the electric part being supported on support insulator The fracture component being fixedly connected between the wire outlet seat of both sides is included, high voltage isolator realizes electric division behaviour by fracture component Make, described fracture component includes negative contact and the yang contacts that can be engaged with each other, by operating mechanism driving force, to drive two Lateral brace insulator and first, second conductive arm towards or away from swing, be achieved in the negative contact being connected with conductive arm Rotation with yang contacts is incorporated into or separates.Wherein described negative contact generally adopts strip fingertip, and strip fingertip is in negative contact two Side rectangular symmetrical distribution, and formation back contact in contact base both sides is connected in pairs by spring.When yin, yang contactor is fashionable, touch Refer to and contact in two rectangle sides with yang contacts.Fingertip is connected across formation galvanic circle between contact base and yang contacts. and described Fingertip and yang contacts form the fracture of front contact, i.e. disconnecting switch, have division two states in operation, i.e., so-called divide tactile Point, and correspondingly, the back contact is referred to as can not tapping point.

Additionally, high voltage isolator fracture finger contact can be divided into point-contact type, linear contact lay by the form of contact point again Three kinds of type dough-making powder contact-type, as face contact-type is not suitable for outdoor disconnector contact, therefore does not typically adopt.

In existing high voltage isolator, due to there is former and later two contacts on contact, the two contacts form series connection, Spring shunting can be caused and produce heating so that spring temper.On the other hand, as the contact of high voltage isolator typically exposes Out of doors, affected by environment very big, former and later two contact series get up heating.

In addition, in existing high voltage isolator, when yang contacts and negative contact are contacted, due to the torsion difference of fingertip, self-regulated Whole property is not enough so that fingertip both sides contact point pressure can not reach equilibrium, and conductive effect is poor.

Utility model content

Therefore, in order to overcome the problems of the prior art, special proposition this utility model.Therefore, this utility model provides one Kind of high voltage isolator, including the fracture component that constitutes with yang contacts and negative contact and respectively with yang contacts and negative contact The second, first conductive arm being fixedly connected, the yang contacts have annular flange flange and a body part, and the annular flange flange is from described The end of body part nearby radially stretches out, and the negative contact has multiple fingertips, and which surrounds central shaft Using cylindric arrangement mode, the radius of the inscribed circle in the cylinder space for surrounding is less than the radius of the annular flange flange of yang contacts to line, The plurality of fingertip is included in the junction surface engaged when disconnecting switch is closed with the annular flange flange of the yang contacts, in In the section of heart axis, the junction surface forms the arc matched with the periphery of the annular flange flange of yang contacts, multiple fingertips according to By the electrical connection that its own resilient completes with yang contacts by junction surface, wherein described negative contact also includes contacting fingertip with cambered surface Mode is permanently electrically connected to the fixed part of the first conductive arm.

Preferably, the fixed part be hollow tubular shape, multiple fingertips extend from its end face forward and around week to each other It is spaced apart, fixed part inner surface is formed as with pyramidal structure, the front end of first conductive arm is formed as with solid with described Determine the conical surface that the conical surface in portion matches.

Preferably, the fixed part has fixed part opening so that the radius of fixed part can expand and shrink, and solid Determine the radius of the radius more than the first conductive arm in portion, cylindricality anchor ear is arranged on the outside of the fixed part, it is possible to accommodate described There is opening, a pair of clamping plates to be arranged at the opening of the anchor ear for fixed part, the anchor ear, and the clamping plate has perforate, passes through Bolt is screwed into perforate to fasten the clamping plate, so that anchor ear is compressed.

This utility model additionally provides a kind of high voltage isolator fracture component, including mutually rotate engagement yang contacts and Negative contact, the negative contact are fixedly attached to the first conductive arm of high voltage isolator, and the yang contacts have annular flange flange and sheet Body portion, the annular flange flange radially stretch out from the end of the body part or nearby, the negative contact There are multiple fingertips, which surrounds central axis using cylindric arrangement mode, and the plurality of fingertip is included in high voltage isolator The junction surface engaged with the annular flange flange of the yang contacts during closure, wherein described negative contact also include contacting fingertip with face Mode is permanently electrically connected to the fixed part of the first conductive arm, and the junction surface of the plurality of fingertip surrounds the post that central axis is formed Radius of the radius of the inscribed circle in shape space less than the annular flange flange, and the inner surface tool at the junction surface of the plurality of fingertip There is the cambered surface that the peripheral shape with the annular flange flange of the yang contacts matches so that the fingertip when yang contacts are engaged with negative contact Outside elastic deformation simultaneously forms linear contact lay with the annular flange flange of yang contacts.

Preferably, the fixed part of the negative contact be hollow tubular shape, multiple fingertips extend from its end face forward and around It is circumferentially spaced one from the other, fixed part inner surface is formed as with pyramidal structure, before the pyramidal structure and first conductive arm The conical surface that end is formed matches, to form self-locking.

Preferably, the fixed part of the negative contact has fixed part opening so that the radius of fixed part can expand and receive Contracting, and the radius of fixed part, more than the radius of the first conductive arm, cylindricality anchor ear is arranged on the outside of the fixed part, it is possible to The fixed part is accommodated, there is the anchor ear opening, a pair of clamping plates to be arranged at the opening of the anchor ear, the clamping plate has to be opened Hole, fastens the clamping plate by bolt is screwed into perforate, so that anchor ear is compressed.

Preferably, the fixed part of the fingertip of the negative contact is integrally formed with the first conductive arm.

Preferably, the fixed part of the fingertip of the negative contact is welded together with the first conductive arm.

Preferably, multiple fingertips of the negative contact are realized the Electricity Federation with yang contacts by the elastic force of itself by junction surface Connect.

Preferably, the negative contact arranges spring on the outer surface of multiple fingertips, to strengthen the resilience force of fingertip.

Preferably, there is cannelure in the outer surface at the junction surface of the negative contact, for receiving ring spring.

Preferably, the fixed part of multiple fingertips of negative contact be separated from one another, and each fixed part have at least one Fixed part is coupled together in the way of cambered surface is contacted with the first conductive arm by installing hole, bolt through installing hole.

Preferably, in the outer surface of the waist between the junction surface and the standing part of the plurality of fingertip Upper setting leaf spring.

This utility model provides a kind of high voltage isolator again, and which includes above-mentioned high voltage isolator fracture component, with And the first conductive arm being fixedly connected with the fracture component.

The problems of the prior art, and simple structure are overcome according to negative contact of the present utility model, is connected firmly, resistance to Time property is good, and maintenance operation is convenient.

Description of the drawings

From the preferred implementation of the present utility model for describing in detail below in conjunction with the accompanying drawings, advantage of the present utility model and Purpose can be better understood, in accompanying drawing:

Fig. 1 is the sectional view for illustrating the fracture component according to preferred embodiment of the present utility model, and in figure, dust cover is arranged Outside negative contact；

Fig. 2 is the perspective view of fracture component negative contact shown in Fig. 1, and in figure, dust cover is arranged on outside negative contact；

When Fig. 3 is that yang contacts are not engaged with negative contact, along the sectional view of the line A-A of Fig. 1；

Fig. 4 is the enlarged drawing of details B in Fig. 3；

Fig. 5 is after yang contacts are engaged with negative contact, along the sectional view of the line A-A of Fig. 1；

Fig. 6 is the sectional view for illustrating the fracture component according to another embodiment of the present utility model；

Fig. 7 is the perspective view of fracture component negative contact shown in Fig. 6；

Fig. 8 is the sectional view for illustrating the fracture component according to another embodiment of the present utility model；

Fig. 9 is the perspective view of fracture component negative contact shown in Fig. 8；

Figure 10 is the sectional view for illustrating the fracture component according to a further embodiment of the present utility model；

Figure 11 is the perspective view of fracture component negative contact shown in Figure 10.

Specific embodiment

Will be described in detail with reference to the accompanying drawings according to each embodiment of the present utility model.Here it is to be noted that it in accompanying drawing In, identical reference is given the ingredient substantially with same or like 26S Proteasome Structure and Function, and is closed omitting Repeated description in them.If not otherwise specified, term herein " inside ", " outside ", " interior ", " outward ", " inner side ", " outside " refers to the scope relative to part centre, such as, using central axis as reference, interior and inner side refers to closer to or points to The position of axis or orientation, refer to outward the orientation or orientation further from axis with outside, and for each position on axis, outwards or Outside is referred to further from centre.Term " including A, B, C etc. successively " only indicates that the arrangement of included components A, B, C etc. is suitable Sequence, it is not excluded that include the probability of other parts between A and B and/or between B and C.

Below, referring to figs. 1 to Figure 11, describe in detail according to preferred implementation of the present utility model.In following description In, for convenience, the opening of negative contact is referred to as front end or front side, and the direction towards the opening is referred to as forwards To the end in forward direction of each part is referred to as the front end of the part accordingly, thus, by negative contact conductive arm one end Referred to as rear end or rear side, and it is referred to as backward directions towards the direction of conductive arm, the end in the backward directions of each part It is referred to as the rear end of the part.

Referring to Fig. 1-2, the fracture component according to embodiment of the present utility model includes yang contacts 11 and negative contact 12.Anti- Dust hood 1 is arranged on outside negative contact.Yang contacts 11 are fixedly attached to the second conductive arm 15, and the second conductive arm 15 passes through wire outlet seat (not shown) is fixed to yang contacts side insulator (not shown), and insulator can turn around axis relative to fixed pedestal (not shown) Dynamic.Negative contact 12 is fixedly attached to the first conductive arm 13, and the first conductive arm 13 is fixed to negative contact by wire outlet seat (not shown) Side insulator (not shown), insulator can be rotated about axis relative to fixed pedestal (not shown).In closing operation, yang contacts 11 and negative contact 12 be rotated into the state that is engaged with each other in opposite directions, realize conducting；In opening operation, two contacts turn opposite to each other Dynamic, that is, being directed away from mutual direction and rotating, the disconnection of high voltage isolator is realized so as to be disengaged.

Fig. 1 is the section view of the yang contacts 11 under engagement state and negative contact 12 along the plane through central axis MM Figure.Yang contacts 11 include body part 110 and annular flange flange 112, and the annular flange flange 112 is from the front end of body part 110 Or nearby stretch out in radial directions and formed.Body part 110 for cylindric, and with 15 1 bodily form of the second conductive arm Into with central axis MM.Body part 110 is hollow tubular structures in an embodiment.Neighboring footpath from body part 110 End of flange 114 is terminated to the annular flange flange 112 for stretching out.Cutting along the plane comprising central axis MM the end 114 There is in the section for taking the arcuate shape of bending.In one embodiment, the end 114 has circular shape in cross section.

See that the fracture texture shown in Fig. 1, Fig. 2, negative contact 12 are made up of the conductor material with certain elasticity, which includes cylinder The fixed part 120 of shape and tubular are connected to multiple fingertips 124 of 120 front end periphery of fixed part, and described multiple fingertips 124 are wrapped Include elastic 1241, junction surface 1242 and arc guide portion 1246, fixed part 120 is open column shape structure, fixed part 120 with many 124 integrally connected of individual fingertip, 124 self-fixed department of multiple fingertips, 120 front end are elastic 1241 to boss 1243 is processed, from processing Boss 1243 to the inner surface between arc inflection point is junction surface 1242.The plurality of fingertip 124 forms one around axis MM Individual column opening, the described arc radius at junction surface 1242 are matched with 112 radius of annular flange flange of yang contacts 11.

The fixed part 120 is fixedly connected on the front end of the first conductive arm 13 around axis MM, and junction surface 1242 is used for Constitute with yang contacts 11 and electrically connect.

In order to clearly demonstrate the operation principle of fracture component and size relationship each other, as shown in Figure 3, Figure 4, sun The radius of 112 periphery of annular flange flange of contact is represented by R3, from the foregoing, the radius of junction surface intrados is also R3；Cloudy tactile The inside radius of the elastic of head is represented by R1；The column opening that multiple fingertips 124 are surrounded in free state, at junction surface 1242 A tangent plane does perpendicular to axis in place, and the figure that the multistage camber line that the junction surface 1242 is projected in the tangent plane is surrounded, in which Connect radius of circle to be represented by R2.

Using conductor material there is certain elasticity, in order to utilize the elastic deformation of fingertip itself, so that yang contacts exist A contact pressure is obtained when being incorporated into negative contact, thus, before processing negative contact junction surface 1242, the negative contact that obtains first It is the tubular of R1 that 12 base substrates are the internal diameters surrounded by multiple fingertips 124 without junction surface, during processing, multiple fingertips 124 is surrounded Column opening processing boss radially push open below 1243 a specific dimensions H and fixation, then in the position of junction surface Surface turnery processing goes out the cylindrical space that a radius is R3, that is, be formed as described junction surface 1242, thus in fingertip elasticity After recoverable force, or in separation state, each fingertip will inwardly receive size H at junction surface.In junction surface position A tangent plane is done perpendicular to axis, then the junction surface 1242 of the multiple fingertips camber line interrupted by multistage is projected as on the tangent plane, The figure that the multistage camber line is surrounded, its inradius are R3-H=R2.It follows that when radius is the yang contacts annular of R3 Flange be incorporated into negative contact that inradius is R2 open in, will force each fingertip, at junction surface 1242, elasticity radially occurs Deformation H, and cause multiple fingertips 124 to be contacted with the annular of yang contacts 11 at junction surface 1242 with pressure thight with elastic force On flange 112.So that the contact camber line between multiple 1242 cambered surfaces of fingertip junction surface and 112 periphery of annular flange flange is obtained surely Fixed and enough electrical contact pressure.

Thus the elastic force that fingertip junction surface 1242 has allows negative contact 12 and yang contacts 11 to realize electric connection With separate.

Fingertip 124 is formed with guide portion in junction surface leading section, the guide portion in radially outward arc-shaped bend, to be formed Horn-like, so as to the guiding insertion negative contact of yang contacts 11.

Therefore, as shown in figure 1, when yang contacts 11 are inserted negative contact 12 and engaged with junction surface 1242, being touched due to multiple Refer to that the section radius of the 1 column opening for being formed are slightly less than the radius of the annular flange flange of yang contacts 11, therefore will force junction surface 1242 outside elasticity are opened.Annular flange flange 112 due to the radius of curvature and yang contacts 11 of the inner surface 1242 at junction surface 1242 External diameter identical, so the junction surface 1242 of fingertip 1 forms close linear contact lay with the annular flange flange 112 of yang contacts 11, referring to Shown in Fig. 5, and tightly it is pressed in the annular flange flange of yang contacts due to the elastic force of fingertip.Therefore, in installation and debugging The radial direction and axial location that contact need not be adjusted can just be directly realized by the good linear contact lay of fingertip, so as to avoid self-adjusting Property difference problem.

Additionally, in this embodiment, the inner surface (fixation surface) of fixed part 120 is formed as conical surface, and first leads The front end of electric arm 13 has the conical surface matched with the conical surface.When negative contact 12 and the first conductive arm 13 is connected, By the front end of the first conductive arm 13 wedging fixed part 120 so that what the first conductive arm 13 and fixed part 120 passed through them mates cone Face and self-locking are together.In the fixed part 120 of the front end of the first conductive arm of axial compression 13 and fingertip, before the first conductive arm Self-locking between end and fixed part further can be strengthened, so as to the Wedged between fixed part 120 and the first conductive arm 13 Negative contact 12 is firmly coupled by self-locking connection with the first conductive arm 13, realization being reliably conductively connected between the two. The cone angle of the inner conical surface of the fixed part 120 of fingertip 124 be less acute angle, for example, 1 ° to 3 °.

In order to strengthen the electrical contact pressure between junction surface and annular flange flange, and ensure its reliability, can be with cloudy tactile Head outer surface is provided with helical spring, as shown in Fig. 2 helical spring 126 is arranged on the outer surface at the junction surface 1242 of multiple fingertips On.Outer surface at the junction surface 1242 of negative contact 12 processes a cannelure, for receiving ring spring 126.Thus, when sun So that during 1242 outside elastic deformation of junction surface, the helical spring 126 can be stretched in the insertion negative contact 12 of contact 11, from And applying inside elastic force to fingertip 124, elastic force and fingertip 124 elastic force one of itself that helical spring 126 applies works and makes Contact pressure between the junction surface 1242 of fingertip 124 and the annular flange flange 112 of yang contacts is bigger.

The high voltage isolator of Fig. 1-2 illustrated embodiments avoids self-adjusting in the case of linear contact lay with simple structure Property difference problem, while eliminate the problem brought by back contact, which thereby enhance disconnecting switch fracture component in operation Reliability and stability.

Below, referring to Fig. 6-7, the fracture component according to another embodiment of the present utility model will be described.

The embodiment of Fig. 6-7 is that with the difference of the embodiment of Fig. 1-2 fixed part 120 has along the longitudinal direction Otch so that the radius of fixed part can expand and shrink.Thus, when negative contact 12 and the first conductive arm 13 are conductively connected, The front end that fixed part 120 is sleeved on the first conductive arm 13, then the outside of fixed part 120 be set with a cylindricality anchor ear 6 again.This armful External diameter of the internal diameter of hoop 6 slightly larger than the fixed part 120 of negative contact 12.Alternatively, the anchor ear 6 can have opening in side, There can be opening in both sides.In this embodiment, anchor ear 6 has opening in side, at the opening, arranges a pair of clamping plates 7, Clamping plate 7 has perforate 8, by bolt is screwed into perforate 8, can fasten clamping plate 7, so that anchor ear is compressed, by negative contact Fixed part is pressed in the front-end surface of the first conductive arm 13, forms stable leading between negative contact 12 and the first conductive arm 13 Electrical connection, eliminates the problem of the spring shunting brought by back contact.

In addition, as shown in Figure 6, Figure 7, the hypodynamic problem of bullet in order to make up fingertip natural resiliency portion can be embracing The front end of hoop 6 is additionally provided with dentation spring 9, to strengthen the elastic force of the elastic 1241 of fingertip 124, to increase junction surface 1242 Contact pressure.

Then, fracture component of Fig. 8-9 descriptions according to another embodiment of the present utility model will refer to.

Similar to above-described embodiment, the fingertip 124 of the negative contact 12 of the embodiment of Fig. 8-9 includes needing and yang contacts 11 The junction surface 1242 of the engagement of annular flange flange 112 and the fixed part 120 that fingertip and the first conductive arm 13 are fixed.Multiple fingertips 124 The section internal diameter of the column opening for being formed is slightly less than the external diameter of the annular flange flange of yang contacts 11.Junction surface in fingertip 124 On 1242 inner surface, the cambered surface matched with the peripheral shape of the annular flange flange of yang contacts 11 is provided with.Therefore, by yang contacts When in 11 insertion negative contacts 12, matched by the junction surface of multiple fingertips and the peripheral shape of the annular flange flange of yang contacts, from And the tight linear contact lay of the junction surface of fingertip and the annular flange flange of yang contacts is realized, and the problem of self-adjusting difference is avoided, reach Arrive preferable conductive effect.

The embodiment of Fig. 8-9 is with the difference of above-described embodiment, the fixed part 120 of the fingertip 124 of negative contact 12 It is integrally formed with the first conductive arm 13, is such as formed by welding.In addition, for the contact pressure for strengthening fingertip junction surface, Ring spring can also be set, and machining (such as Vehicle Processing) in the outer surface at the junction surface 1242 of negative contact 12 goes out an annular Groove, for receiving ring spring 126.When yang contacts 11 are inserted in negative contact 12, yang contacts can make the engagement of multiple fingertips 1242 outside elastic deformation of portion, now, ring spring 10 is forced to stretch out deformation, so as to inwardly produce elastic force, both Elastic force is overlapped mutually, so as to be pressed on the junction surface of fingertip 124 on the surface of the annular flange flange of yang contacts 11, so as to by fingertip It is pressed on baffle ring periphery and forms the interior cylinder for being slightly less than yang contacts.

In above three embodiment, the 112 radius R3 of annular flange flange of the cambered surface radius at junction surface 1242 and yang contacts 11 Match, but, the cylindrical space inradius R2 that 1242 cambered surface of junction surface of multiple fingertips 124 is surrounded is less than yang contacts 11 Annular flange flange 112 radius R3, then R3=R2 can also be fabricated in the middle of actual enforcement, so as to reach same electricity Effect is contacted, specific practice is：Fingertip 124 is made under undeformed free state, 1242 arc of junction surface is fixed and process Face, at this moment fingertip junction surface 1242 there will not be elastic deformation, the thus post surrounded by multiple 1242 cambered surfaces of fingertip junction surface Shape space is the cylinder that a radius is R3, equal with 112 peripheral radius of yang contacts annular flange flange, will cause multiple fingertips The cylindrical space surrounded by the intrados at junction surface, its inscribed circle column radius are less than yang contacts annular flange flange radius.Also required A main spring to be set up in 1242 outer surface of junction surface, preferably set up a garter spring 127, this helical spring 127 pressure for being formed must be enough to overcome 124 reverse elastic force of fingertip, and cause 1242 cambered surface of fingertip junction surface in annular flange flange Enough electrical contact pressure is obtained in 112 arc contact line.Thus same electro-contact effect can also be reached.Thus adopt Ring spring and the be a difference in that spring of aforementioned toroidal spring become main spring, increase the volume of spring, but can make Negative contact reduces processing cost.

Finally, the fracture component according to another embodiment of the present utility model is described referring to Figure 10-11.

Similar to above-described embodiment, the fingertip 124 of the negative contact 12 of the embodiment of Figure 10-11 includes needing and yang contacts 11 Annular flange flange 112 engagement junction surface 1242 and the fixed part 120 that fingertip and the first conductive arm 13 are fixed.Similar to Fig. 1- 2 embodiment, the section internal diameter of the column opening formed by multiple fingertips 124 are slightly less than the outer of the annular flange flange of yang contacts 11 Footpath.On the inner surface at the junction surface 1242 of fingertip 124, it is provided with and matches with the peripheral shape of the annular flange flange of yang contacts 11 Cambered surface.Therefore, when yang contacts 11 are inserted in negative contact 12, by the intrados of multiple fingertips and the annular flange flange of yang contacts Peripheral shape match, so as to realize the tight linear contact lay at the junction surface of fingertip and the annular flange flange of yang contacts, and avoid The problem of self-adjusting difference, reaches preferable conductive effect.

The embodiment of Figure 10-11 is with the difference of above-described embodiment, the fixation of multiple fingertips 124 of negative contact 12 Portion 120 does not form as one, but separated from one another, as shown in figure 11.The inner surface of fixed part 120 has conductive with first The cambered surface that the peripheral shape of the front end of arm 13 matches, and each fixed part 120 has at least one installing hole 1201 (in the reality Apply in example is two) and neck bush 131 is provided with the first conductive arm port, in order to fastening bolt, and ensure the thrust of bolt. Thus, when the first conductive arm 13 being inserted in fixed part 120, form face and contact between fixed part and the first conductive arm.Then, Bolt is screwed through installing hole 1201, and is gradually tightened bolt and is made fixed part 120 be pressed on the first conductive arm 13 securely Front end on.It is bolted and realizes being conductively connected between negative contact and the first conductive arm, eliminates back contact and brought Spring shunting problem.

It is to be understood that the subject area the curved surfaces at fingertip junction surface 1242 have the external diameter identical with the annular flange flange of yang contacts Radius, while the cylindrical space inradius that the junction surface of undeformed negative contact surrounds is less than the external diameter of annular flange flange 112. That is, the radius of cylindrical space that formed of the junction surface deformed after engagement (which is outer with the annular flange flange of yang contacts Week forms linear contact lay) it is the different concentric circular of radius with the inner surface of fingertip fixed part 120.

In use, can also arrange on the outer surface of the elastic 1241 (between junction surface and fixed part) of fingertip Leaf spring 14, as shown in figure 11, leaf spring is fastened on the front end of the first conductive arm in the lump by the fixed part of bolt and fingertip, so as to carry High contact pressure.

In this embodiment, in assembling, circumferentially ajust fingertip in the axial direction, compress fastening bolt, by touching Refer to that the cambered surface of fixed part and mutually coincideing for the front end of the first conductive arm can be with the axial deflections of adjust automatically fingertip, so that touching The cambered surface at the junction surface of finger is contacted with the periphery of the annular flange flange of yang contacts with matching.

The manufacture process of the negative contact according to high voltage isolator of the present utility model is described below.First, by machine plus Work forms one section of tubulose blank.Then, formed along the extension of blank tube hub axis and week by being machined into one end of blank To multiple grooves spaced apart, to form multiple fingertips.Afterwards, the inner surface at least junction surface of fingertip is processed and is had and sun The curved surface of the essentially identical internal diameter of contact annular flange flange external diameter, described processing boss are by being formed between two above machined surface Step.Then, fingertip end is bent outwardly, forms the guide portion of flare openings.

In the present embodiment, the manufacture method also includes outwards flexibly pushing fingertip open a H size with mould, will touch Refer to and fix in three-dimensional, and process on the inner surface at least junction surface of fingertip in the case of fingertip elastic deformation Go out there is the curved surface of the internal diameter essentially identical with yang contacts annular flange flange external diameter.

Although specifically describing this utility model above with reference to preferred implementation of the present utility model, it is to be appreciated that It is that this utility model is not limited to implementations described above, but in the premise without departing substantially from marrow of the present utility model Under, various modifications may be made and change for those skilled in the art, and these modifications and variations should all fall into claims And its in the range of equivalent restriction.

Claims (14)

1. a kind of high voltage isolator, including the fracture component that constitutes with yang contacts (11) and negative contact (12) and difference The second conductive arm (15) being fixedly connected with yang contacts and negative contact and the first conductive arm (13), the yang contacts have body Divide (110) and annular flange flange (112), annular flange flange (112) are from the end of the body part (110) or nearby along footpath Stretch out to direction, the negative contact has multiple fingertips (124), which surrounds central axis using cylindric arrangement mode, Radius of the radius of the inscribed circle in the cylinder space for surrounding less than the annular flange flange of yang contacts, the plurality of fingertip (124) include The junction surface (1242) engaged with the annular flange flange (112) of the yang contacts (11) when disconnecting switch is closed, in In the section of heart axis, the junction surface forms the arc matched with the periphery of the annular flange flange of yang contacts, multiple fingertips (124) electrical connection for completing with yang contacts by junction surface by its own resilient, wherein described negative contact are also included fingertip (124) The fixed part (120) of the first conductive arm (13) is permanently electrically connected in the way of cambered surface is contacted.

2. high voltage isolator fracture component as claimed in claim 1, wherein described fixed part (120) are hollow tubular shape Shape, multiple fingertip (124) extend from its end face forward and around being circumferentially spaced one from the other, and fixed part (120) inner surface is formed as having The front end for having the cone structure gradually expanded towards the first conductive arm, the first conductive arm (13) is formed as with solid with described Determine the conical surface that the conical surface in portion (120) matches.

3. high voltage isolator fracture component as claimed in claim 1, it is characterised in that described fixed part (120) have solid Determine portion's opening so that the radius of fixed part can expand and shrink, and the radius of fixed part is more than the first conductive arm (13) Radius, cylindricality anchor ear (6) are arranged on the outside of the fixed part (120), it is possible to accommodate the fixed part (120), described armful There is hoop (6) opening, a pair of clamping plates (7) to be arranged at the opening of the anchor ear, and described clamping plate (7) have perforate (8), by inciting somebody to action Bolt is screwed into perforate (8) to fasten the clamping plate (7), so that anchor ear (6) is compressed.

4. a kind of high voltage isolator fracture component, including mutually rotating yang contacts and the negative contact of engagement, the negative contact is fixed First conductive arm (13) of high voltage isolator is connected to, the yang contacts have body part (110) and annular flange flange (112), annular flange flange (112) radially stretch out from the end of the body part (110) or nearby, institute State negative contact and there are multiple fingertips (124), which surrounds central axis using cylindric arrangement mode, the plurality of fingertip (124) The junction surface (1242) engaged when high voltage isolator is closed is included in the annular flange flange (112) of the yang contacts (11), its Described in negative contact also include fixed part (120) that fingertip (124) is permanently electrically connected to the first conductive arm (13), described many The radius of the inscribed circle of the cylindrical space that the junction surface of individual fingertip (124) is formed around central axis is less than the annular flange flange (112) external diameter, and in the section of central axis, the junction surface (1242) of the plurality of fingertip (124) is formed The cambered surface matched with the peripheral shape of the annular flange flange of the yang contacts (11) so that touch when yang contacts are engaged with negative contact Refer to (124) outwards deformation annular flange flange formation linear contact lay with yang contacts.

5. high voltage isolator fracture component as claimed in claim 4, the fixed part (120) of wherein described negative contact is hollow Tubular form, multiple fingertip (124) extend from its end face forward and around being circumferentially spaced one from the other, fixed part (120) inner surface shape Become with the cone structure gradually expanded towards the first conductive arm, the front end of the cone structure and the first conductive arm (13) The conical surface of formation matches, to form self-locking.

6. high voltage isolator fracture component as claimed in claim 4, it is characterised in that the fixed part of the negative contact (120) there is fixed part opening so that the radius of fixed part can expand and shrink, and the radius of fixed part is led more than first The radius of electric arm (13), cylindricality anchor ear (6) are arranged on the outside of the fixed part (120), it is possible to accommodate the fixed part (120), described anchor ear (6) have opening, and a pair of clamping plates (7) are arranged at the opening of the anchor ear, and described clamping plate (7) have and open Hole (8), fastens the clamping plate (7) by bolt is screwed into perforate (8), so that anchor ear (6) is compressed.

7. high voltage isolator fracture component as claimed in claim 4, it is characterised in that the fingertip of negative contact (12) (124) fixed part (120) is integrally formed with the first conductive arm (13).

8. high voltage isolator fracture component as claimed in claim 7, it is characterised in that the fingertip of negative contact (12) (124) fixed part (120) is welded together with the first conductive arm (13).

9. high voltage isolator fracture component as claimed in claim 4 is characterized in that, the multiple of the negative contact (12) touch Refer to that (124) are realized being electrically connected with yang contacts (11) by junction surface (1242) by the elastic force of itself.

10. the fracture component of high voltage isolator as claimed in claim 4, it is characterised in that negative contact (12) are more Spring is set on the outer surface of individual fingertip (124), to strengthen the resilience force of fingertip.

11. high voltage isolator fracture components as claimed in claim 10, it is characterised in that the engagement of negative contact (12) There is cannelure in the outer surface in portion (1242), for receiving ring spring (10).

12. high voltage isolator fracture components as claimed in claim 4, it is characterised in that multiple fingertips of negative contact (12) (124) fixed part (120) be separated from one another, and each fixed part (120) have at least one installing hole (1201), bolt Fixed part is coupled together in the way of cambered surface is contacted with conductive arm through installing hole.

13. high voltage isolator fracture components as claimed in claim 11, it is characterised in that in the plurality of fingertip (124) The junction surface (1242) and the fixed part (120) between outer surface on arrange leaf spring (14).

A kind of 14. high voltage isolators, including the high voltage isolator fracture component as any one of claim 4-13, And the first conductive arm for being fixedly connected with the fracture component and the second conductive arm.